Eleventh annual report of the United States Geological and Geographical Survey of the Territories : embracing Idaho and Wyoming : being a report of progress of the exploration for the year 1877 . -?-•J---. Phos. Sinclair* Son. Li PLATE 6. Page. Fig-. 1. Glyclmebis berthoudi 299 a. Left-side view; natural size. h. Dorsal view of the same example. Fig. 2. Babbatia coalvillensis 286 a. Exterior view; left valve; natural size. b. Interior view, showing hinge, the middle portion of which is imperfect. Both are partial restorations. Fig. 3. Plicattjla hydbotheca 279 a. Natural cast in sandstone
Eleventh annual report of the United States Geological and Geographical Survey of the Territories : embracing Idaho and Wyoming : being a report of progress of the exploration for the year 1877 . -?-•J---. Phos. Sinclair* Son. Li PLATE 6. Page. Fig-. 1. Glyclmebis berthoudi 299 a. Left-side view; natural size. h. Dorsal view of the same example. Fig. 2. Babbatia coalvillensis 286 a. Exterior view; left valve; natural size. b. Interior view, showing hinge, the middle portion of which is imperfect. Both are partial restorations. Fig. 3. Plicattjla hydbotheca 279 a. Natural cast in sandstone of the deeper valve; natural External view of the upper or flat valve. Fig. 4. Mactra? hoemesii 295 a. Bight valve; natural Left valve. c. Side view; type-specimen. Fig. 5, a and & ; represent prohahly the same species; from nearCaQon City, Colo. Fig. 6. Cabyophyllia johannis 274 a. Side view; enlarged two Calycular view of the same. Fig. 7. Cabtophyllia? egebia 275 a. Side view; enlarged two diameters. 6. Vertical view of another example, broken across just belowthe calyx. U 5 GEOLOGICAL SURVEY. PLATE m IF ^ I Mi
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